Process for the production of isotactic polypropylene

Details Process for the production of isotactic polypropylene Process for the production of isotactic polypropylene

1974-07-23

1976-12-28

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526159, 526350, 526351, 526903, C08F 466, C08F 1006

Patent

active

040003540

ABSTRACT:
Polypropylene can be polymerized with Ziegler-Natta TiCl.sub.3 or TiCl.sub.3 . (AlCl.sub.3).sub.0.2.sub.-0.6 plus chlorine containing organoaluminum compound mixed catalyst using butene-2 or a C.sub.4 -cut comprising butene-2 as the polymerization solvent without the formation of propylene-butene copolymers.

REFERENCES:
patent: 3197452 (1965-07-01), Nalta et al.
patent: 3332921 (1967-07-01), Cleary
patent: 3461110 (1969-08-01), Rice et al.
patent: 3479329 (1969-11-01), Chauvin et al.
patent: 3582987 (1971-06-01), Nalta et al.
patent: 3705884 (1972-12-01), Frese
patent: 3794627 (1974-02-01), Giachetto

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